'Separate' in the Bible

he shall abstain from wine and strong drink; he shall drink no vinegar, whether made from wine or strong drink, nor shall he drink any grape juice nor eat fresh or dried grapes.

and he shall dedicate himself to the Lord for the time of his separation and shall bring a male lamb a year old as a guilt offering; but the previous days will be void and lost, because his separation was defiled.

“Thus you shall separate the Levites from among the Israelites, and the Levites shall be Mine [in a very special sense].

“Separate yourselves from among this congregation, so that I may consume them immediately.”